Scientists have long treated mass extinctions as events locked deep in the fossil record. That framing now feels less distant ...

Humans have wiped out hundreds of species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass extinction” event ...

Human activity has accelerated extinction rates, raising concerns that we may be entering a sixth mass extinction.

CNN — Almost a third of the Earth will need to be protected by 2030 and pollution cut by half to save our remaining wildlife, as we enter the planet's sixth era of mass extinction, according to a ...